Detection cable

Abstract

The invention discloses a detection cable and in particular relates to the cable field. The detection cable comprises a conductor core, wherein the surface of the conductor core is fixedly connected with a conductor shielding layer; the surface of the conductor shielding layer is movably connected to a stopping block and a positioning block; and the surface of the positioning block is fixedly connected with a fixing layer. The conductor core can be fixed through the stopping block and the positioning block. Thus, the conductor cores in a cable can be prevented from rotating relative to each other and further from causing the cable to fracture and affecting the electrical performance of the cable. A thermal expansion block is expanded by heat and pushes a fire extinguishing ball to make thefire extinguishing ball in a compressed state. When the cable is fired and burns out the fire extinguishing ball, the compressed fire extinguishing ball eject the carbon dioxide to extinguish the fire, thereby achieving a purpose of high temperature resistance. A first reinforcing layer and a second reinforcing layer can protect the steel wire of an outer armored layer against serious wear, thereby prolonging the service life of the cable.

Description

technical field [0001] The invention relates to the technical field of cables, and more specifically, the invention relates to a detection cable. Background technique [0002] The load-bearing detection cable mainly refers to the double-steel wire armored cable for downhole oil mine detection under the condition of bearing the mechanical load (hanging hammer plus the cable's own weight), also known as the oil well logging cable. Its functions include well logging, perforating, coring, etc. . Well logging cables are called "the eyes of oil workers" in the petroleum industry, through which we can know whether there is oil or gas underground, and can measure technical parameters such as well temperature, well pressure and well deviation. [0003] However, the load-bearing detection cables in the prior art still have many disadvantages. Because the cables need to work in very harsh high-temperature, high-pressure and corrosive environments, the steel wire armor of the load-bear...

AI Technical Summary

Problems solved by technology

[0003] However, the load-bearing detection cables in the prior art still have many disadvantages. Because the cables need to work in very harsh high-temperature, high-pressure and corrosive environments, the steel wire armor of the load-bearing detection cables is easily damaged. In addition, many After the first use, the steel wire on the outer layer of the cable is severely worn, and these conditions lead to a short service life of the load-bearing detection cable

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